#include #define SIZE 10000001 using namespace std; class Xorshift{ private: uint32_t x, y, z, w; public: Xorshift(uint32_t seed){ x = seed; y = 1; z = 2; w = 3; } uint32_t operator()(){ uint64_t t=(x^(x<<11)); x=y; y=z; z=w; return w=(w^(w>>19))^(t^(t>>8)); } }; int main(){ uint32_t seed; cin >> seed; Xorshift xorshift(seed); uint32_t padding = 5000000; uint32_t bottom = (1<<31) - padding; uint32_t top = (1<<31) + padding; vector ans; ans.reserve(50000); int cnt = 0; for(int i = 0; i < SIZE; i++){ uint32_t tmp = xorshift(); if(tmp >= bottom && tmp <= top){ ans.push_back(tmp); }else if(tmp < bottom){ cnt++; } } sort(ans.begin(),ans.end()); cout << ans[SIZE/2 - cnt] <